/**
 * @File name : PageData.java
 * @Description : 
 * @Creator : haifeng17
 * @CreateTime : Dec 30, 2016 3:00:11 PM
 * @Version : 1.0
 * @Update records:
 *      1.1 Dec 30, 2016 by haifeng17: 
 *      1.0 Dec 30, 2016 by haifeng17: Created 
 * All rights served : XXX CORP.
 */
package com.ent.app.bms.util;

import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import javax.servlet.http.HttpServletRequest;


public class PageData extends HashMap<Object, Object> implements Map<Object, Object>{

    /**
     * <code>serialVersionUID</code> annotation
     */
    private static final long serialVersionUID = -907708119889645740L;
    
    Map<Object, Object> map = null;
    HttpServletRequest request;
    public PageData(HttpServletRequest request){
        this.request = request;
        Map properties = request.getParameterMap();
        Map returnMap = new HashMap(); 
        Iterator entries = properties.entrySet().iterator(); 
        Map.Entry entry; 
        String name = "";  
        String value = "";  
        while (entries.hasNext()) {
            entry = (Map.Entry) entries.next(); 
            name = (String) entry.getKey(); 
            Object valueObj = entry.getValue(); 
            if(null == valueObj){ 
                value = ""; 
            }else if(valueObj instanceof String[]){ 
                String[] values = (String[])valueObj;
                for(int i=0;i<values.length;i++){ 
                     value = values[i] + ",";
                }
                value = value.substring(0, value.length()-1); 
            }else{
                value = valueObj.toString(); 
            }
            returnMap.put(name, value); 
        }
        map = returnMap;
    }
    
    public PageData() {
        map = new HashMap();
    }
    
    @Override
    public Object get(Object key) {
        Object obj = null;
        if(map.get(key) instanceof Object[]) {
            Object[] arr = (Object[])map.get(key);
            obj = request == null ? arr:(request.getParameter((String)key) == null ? arr:arr[0]);
        } else {
            obj = map.get(key);
        }
        return obj;
    }
    
    public String getString(Object key) {
        return (String)get(key);
    }
    
    @SuppressWarnings("unchecked")
    @Override
    public Object put(Object key, Object value) {
        return map.put(key, value);
    }
    
    @Override
    public Object remove(Object key) {
        return map.remove(key);
    }

    public void clear() {
        map.clear();
    }

    public boolean containsKey(Object key) {
        // TODO Auto-generated method stub
        return map.containsKey(key);
    }

    public boolean containsValue(Object value) {
        // TODO Auto-generated method stub
        return map.containsValue(value);
    }

    public Set entrySet() {
        // TODO Auto-generated method stub
        return map.entrySet();
    }

    public boolean isEmpty() {
        // TODO Auto-generated method stub
        return map.isEmpty();
    }

    public Set keySet() {
        // TODO Auto-generated method stub
        return map.keySet();
    }

    @SuppressWarnings("unchecked")
    public void putAll(Map t) {
        // TODO Auto-generated method stub
        map.putAll(t);
    }

    public int size() {
        // TODO Auto-generated method stub
        return map.size();
    }

    public Collection values() {
        // TODO Auto-generated method stub
        return map.values();
    }
    

}
